Fuel-oil burner.



Patented Jan, K2, Lcj.

www i Bpecioetion Letters implication. filed october 2E, wie. serial Noi Siese.

To uZZ wiom'z't may eminem:

Be itlmowu that lf, Bitumen EARL 1, citizen oi the United States, und e resident of Portland, ooiuity or" lllultuomuh, end State oi Oregon, have invented a, new end useful lmproveuieut iu Fuel-Oil urhere, ol which the following is u. Specification.

.illy invention relu/es to luel oil burning devices by which the crude or Afuel oil is etomized by and iuteriuixed with com pressed air or steam so as to promote intense Combustion.

lilly invention ie purtioulerly adopted for use in boilers of the vertical type.' Under present conditions, the life oii' the tubes iu such boilers is unduly shortened, because the lume is not uniformly spread under all the tubes, und iu consequence the tubes are not heated uniformly., end the varying temporr ture stresses cause distortion und consequent leakage of the tubes.

The object of my invention is; therefore, to provide e burner producing a. blast flume ol high eiiicieucy, which will be spread throughout the top of the 'iirebox of the boiler, und thus uni'hirniilyv 'ouder all tubes.

l attain my obieet by m'l hg burner which comprises au outer iuelvoil tube, eu inner etoiuiziuglluid tube, providing o. biuueucep ou the discharge end of seid outer tube, placing 2L iuuuelshupe flaring heed ou the outer end ol' seid louer tube, so es to cause the tomixing;l iluid to spread out Within the burner-cup, und placing the revolving faul at the outlet oud of the burnercep, which fan is revolved. by the discharge of the combustible vapors from the burneroup, and serves to spread the resultant llame throughout the ireboi; the details of couu struction und operation of my burner being hereinafter fully set forth.

ln the accompanying drawings: Figure l is e vertical, diametricul section of my device; the broken line of this ligure indicates the floor of the fire-boi; of e vertical boiler, in connection with which my device is used. Fig. E2 is e pleo view of the burner-cap iu which the feu uiouuteu; Fig. 3 is e horizont-el seo-tion teken approximately ou the matie vertical elevation of e vertical. multi tubulur boiler showing my device es in stalled therein.

Having reference to the illustrations; e,

indicates the floor of the lireboii, o., of e vertical boiler, p. n

u, is the fuel oil tube projeetiug vertieellv ubove the floor, u, oi' the lire-boli, o, und di; the center of the letter. du eteuiiziug Yliluid tube, e, is vloeeted eoexiolly iii the tube, o, and extends to the seme height the letter. These tubos ere provided with control vulves, of und o, respectively, and eouoeot the burner uozzzle with the fuel and. etomizihg fluid reservoirs. Threaded ou the upper end of the tube, c, is u. flaring, funnel-shape houd, d. The upper rim ol' the heed, al, is provided with peripheral-radial spacing lugs, e, und the bottom or inlet orilee ol .seid heed is reduced to u diameter slightly Smaller than the inside diameter of the tube, e, there y forming the shoulder y, against which the outer ,portion olf the etou'iiziu'g fluid Current will impiego.

Threaded ou the upper eed oi the :Euelbil tube, und iuoloeiug the heed, d, burner cup, y. The lugs, e, of the heed, d, are adapted to have e sliding it iu the burner-oep, g, .so es to hold the tube, o, und heed, d, iu their central position with respect to the tube, The upper end of the burner-oep, g, is provided with rediel spokes, Zi, which have their common eeuter o, bearing, z', in which e vertical pivot post, f3, is mounted. lien, m, provided with blades, o, is rotatable ou seid pivot post, und the diameter el the is slightly smaller than the inside diameter ol' the burner oep, g. This allows the feu to be partially inolosed by the upper eed the Vcup, g, the object of which vf'ill be readily understood by having reference to the following description or' the action el the device. lluel oil flowing through the tube, b,

from u storage teelt (not shoufii) will wellup through the open spscesbetweeu the lugs, e, of the head, d, and flow downward by gravity in o thin film ou the inner surface of' said heed, al, to the shoulder, if. The atomizing blast through the tube, e, will euteh the oror-lowiiig film of oil und breuk it up, y

et the some time mixing with it in the proper proportions. rl`he outer portion of the etomiziug blast current will strike the under side of the proieeting shoulder, f, und the result will be conical blast of lull-.imuieble Oil which will impiego ou the bledes of -the fue et their outermost ends. rhis drivin f oree will rotate the fue., m tliereb 1 i. i a

further mixing the oil and atomizing fluid particles, at the same time spreading the same in a horizontal fan-like sheet. The uninixed particles of oil will be driven against the upper end of the burner cap, g, and Will drop back into the mixing chamber.

The advantages of my particular form of burnerare readily apparent. Perfect combustion of burned fuel is obtained, and there is no dripping of unburned oil onto the floor of the irebox. Furthermore, a perfectly uniform name is produced under the tubes of the boiler, and all of such tubes Will be' heated uniformly to the Same degree. In this Way there Will be no cold tubes, and highest eiliciency of the boiler Will be the result.

I claim:

1. in a uel-oilburner the combination with an outer-fueled tube, an inner atomizingluid tube, of a burner-nozzle comprising a burner-cap on the discharge end of said outer tube, a flaring head on the discharge end of said inner-tube, said head projecting above the discharge end of said outer tube, and a fan journaled at the outlet end of the latter; said fan being spaced from the 'top of said head and rotating in a plane perpendicular to the axis of the burner.

ina, fuel-oil burner the combination with an outer fuel-oil tube, an inner atomizing-liuid tube, of a burner-nozzle comprising a burner-cap von the discharge end of said outer tube, a flaring head on the discharge end of sain innertube, said head projecting above tue discharge end of said outer-tube, said head being made with an inlet orifice of lesser diameter than said inner tube, and a fan journaled at the outlet end of the latter, said fan being spaced from the top of said head and rotating in a plane perpendicular to the axis ofthe burner.

3. In a fuel-oil burner the combination with an outer fuel-oil tube, an inner atomir ing-fluid tube, ot' a burner-nozzle comprising a burner-cap on the discharge end of said outer tube, a flaring head on the discharge end of said inner-tube, said head projecting abbve the discharge end of said outer-tube, said head being made with an inlet orifice of lesser diameter than said inner tube, the rim of said head being of greater diameter than said inner-tube, but spaced from the sides of said burner-cap, and a fan journaled at the outlet end of the latter, said fan being spaced from the top of said head and rotating in a plane perpendicular to the axis of the burner.

4. In a fucloil burner the combination with an outer fuel-oil tube, an inner atomizing-lluid tube, of a burner nozzle comprising a burner-cap on the discharge end of said outer tube, a Haring head on the dis charge end of said inner-tube, said head projecting above the `discharge end of said outer tube,the inlet orice of said head being made With au internal flange or shoulder, the rim of said head being of greater diameter than said inner tube, but spaced from the sides of said burner-cap, and a fan journalcd at the outlet end of the latter, said fan being spaced from the top of said head Iand rotating in a plane perpendicular to the axis of the burner.

5. In a fuel-oil burner the combination With an outer fuel-oil tube, an inner atomizing-luid tube, of a burner-nozzle comprisingva burner-cap onthe discharge end of said outer tube, a funnel-shape head on the discharge end of said inner-tube, said head projecting above the dischargeend of said outer tube, and a fan journaled at the outlet end of the latter, said fan being spaced from the top of said head and rotating in a plane perpendicular to the axis of the burner.

6. .ln a fuel-oil burner the combination with an outer fuel-oil tube, an inner atomic ving-fluid tube, or' a burner-nozzle, comprising a burner-cap on the discharge end of said outer tube, a tunnebshape head on 'the discharge end of sald inner-tube, said head projecting above the discharge end of said outer-tube, said head being made with an' inlet orifice ot' lesser diameter than said inner-tube, and a fan iournaled at the outlet end of the latter, said fan being spaced from the top of said head and rotating in a plane perpendicular to the axis of the burner.'

7. ln a fuel-oil burner the combination with an outer fuel-oil tube, an inner atoniizing-fluid tube, of a burner-nozzle comprising a burner-cap on the discharge end of said outer tube, a unnelshape head on vthe discharge end of said inner-tube, said head pro jecting above the discharge end of said outer tube, said head being made with an inlet orifice of lesser diameter than said innertube, the rim of said headY being of greater diameter than said inner-tube, but spaced from the sides of said burner-cap, and a fan journaled at the outlet end of the latter, said fan being spaced from the top of said head and rotating in a plane perpendicular to'tlie axis of the burner.

8. In a, uel-oil burner, the combination With an outer uel oil tube, an inner atoinizing-i'iuid tube, of a burner-noZzle comprising a burnercap on the discharge end ot said outer tube, a funnel-shape head on the discharge end of said inner-tube, said head projecting above the discharge end of said outer tube, the inlet orifice ot said head being made with an internal flange or shoulder, spacing lugs on the rim of said head spacing the riin from the inner `walls of s id burner-cap, and afan journaled at theoutle't end of the latter, said. fan being spaced from the top of said head and rotating in a plane perpen dicular to the axis o't the burner.

9.. ln a fuel-ml burner the combination with an outer fuel-oil tube, an inner atomiz- ,ing-fluid tube, of a burner-nozzle comprising a burner-cap on the discharge end of said outer'tube, a Haring head on the discharge end of said inner-tube, said head projecting above the discharge end of said outer-tube, and a fan, j ournaled at the outlet end of the latter, said fan being spaced from the top of said head and rotating in a plane perpendicular to the axis of the burner, and the fan being set partially Within said'burnercap.

10. In a fuel-oil burner the combination with an outerfuel-oil tube, an inner' atomizing-iiuid tube, of a burner-nozzle comprising a burner-cap on the discharge end of said outer tube, a flaring head on the discharge end of said inner-tube, said head projecting above the discharge end of said outer-tube, said head being made with an inlet orifice of lesser diameter than said inner-tube, and a fan journaled at the outlet end of the latter, said fan being spaced from the top of said head and rotating in a plane perpendicular to the axis of the burner, and the fan being set partially within said burner-cap.

l1. In a fuel-oil burner the combination with an outer fuel-oil tube7 an inner atomizing-fluid tube, of a burner-nozzle comprising a burner-cap on the discharge end of said outer tube, a Haring head on the discharge end of said inner-tube, said head projecting above the discharge end orp said outer tubes said head being made With an inlet orice of lesser diameter than said inner-tube, the rim of said head being. of greater diameter than said inner-tube, but spaced from the sides of said burner-cap, and a fan j ournaled at the 'outlet end 0i' the latter, said fan being spaced from the top of said head and rotating in a plane perpendicular to the axis of the burner,

and the fan being set partially Within said burner-cap.

RICHARD T. EARLE.

Witnesses:

W'M. C. SCHMITT D, E. CRABB. 

